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<pre><span class="sourceLineNo">001</span>package org.teapot.db.orm.util.keybreakmany;<a name="line.1"></a>
<span class="sourceLineNo">002</span><a name="line.2"></a>
<span class="sourceLineNo">003</span>import org.teapot.db.orm.IKeyValue;<a name="line.3"></a>
<span class="sourceLineNo">004</span><a name="line.4"></a>
<span class="sourceLineNo">005</span>import java.math.BigDecimal;<a name="line.5"></a>
<span class="sourceLineNo">006</span><a name="line.6"></a>
<span class="sourceLineNo">007</span>public class WrappingTypeCheckComparator&lt;T&gt; extends WrappingComparator&lt;T&gt; {<a name="line.7"></a>
<span class="sourceLineNo">008</span>  public WrappingTypeCheckComparator() {<a name="line.8"></a>
<span class="sourceLineNo">009</span>  }<a name="line.9"></a>
<span class="sourceLineNo">010</span><a name="line.10"></a>
<span class="sourceLineNo">011</span>  public WrappingTypeCheckComparator(String[] sortKeys) {<a name="line.11"></a>
<span class="sourceLineNo">012</span>    super.setSortKeys( sortKeys );<a name="line.12"></a>
<span class="sourceLineNo">013</span>  }<a name="line.13"></a>
<span class="sourceLineNo">014</span><a name="line.14"></a>
<span class="sourceLineNo">015</span>  /**<a name="line.15"></a>
<span class="sourceLineNo">016</span>   * Caution !<a name="line.16"></a>
<span class="sourceLineNo">017</span>   *  This comparator does allow null value in key field.<a name="line.17"></a>
<span class="sourceLineNo">018</span>   */<a name="line.18"></a>
<span class="sourceLineNo">019</span>  public int compare(Object o1, Object o2) {<a name="line.19"></a>
<span class="sourceLineNo">020</span>    IWrapper w1 = (IWrapper)o1;<a name="line.20"></a>
<span class="sourceLineNo">021</span>    IWrapper w2 = (IWrapper)o2;<a name="line.21"></a>
<span class="sourceLineNo">022</span><a name="line.22"></a>
<span class="sourceLineNo">023</span>    IKeyValue  t1 = (IKeyValue)w1.getNaked();<a name="line.23"></a>
<span class="sourceLineNo">024</span>    IKeyValue  t2 = (IKeyValue)w2.getNaked();<a name="line.24"></a>
<span class="sourceLineNo">025</span><a name="line.25"></a>
<span class="sourceLineNo">026</span>    int comp = 0;<a name="line.26"></a>
<span class="sourceLineNo">027</span><a name="line.27"></a>
<span class="sourceLineNo">028</span>    // Examine sort(break) keys fileds first<a name="line.28"></a>
<span class="sourceLineNo">029</span>    String[] sortKeys = super.getSortKeys();<a name="line.29"></a>
<span class="sourceLineNo">030</span>    KEYS: for (int i = 0; i &lt; sortKeys.length; i ++) {<a name="line.30"></a>
<span class="sourceLineNo">031</span>        Object v1 = t1.get( sortKeys[i] );<a name="line.31"></a>
<span class="sourceLineNo">032</span>        Object v2 = t2.get( sortKeys[i] );<a name="line.32"></a>
<span class="sourceLineNo">033</span><a name="line.33"></a>
<span class="sourceLineNo">034</span>        if ( v1 == null &amp;&amp; v2 == null ) {<a name="line.34"></a>
<span class="sourceLineNo">035</span>          continue KEYS;<a name="line.35"></a>
<span class="sourceLineNo">036</span>        }<a name="line.36"></a>
<span class="sourceLineNo">037</span>        if ( v1 == null ) {<a name="line.37"></a>
<span class="sourceLineNo">038</span>          return -1;<a name="line.38"></a>
<span class="sourceLineNo">039</span>        }<a name="line.39"></a>
<span class="sourceLineNo">040</span>        if ( v2 == null ) {<a name="line.40"></a>
<span class="sourceLineNo">041</span>          return 1;<a name="line.41"></a>
<span class="sourceLineNo">042</span>        }<a name="line.42"></a>
<span class="sourceLineNo">043</span><a name="line.43"></a>
<span class="sourceLineNo">044</span>        // Type checking and value comparision<a name="line.44"></a>
<span class="sourceLineNo">045</span>        if ( v1 instanceof String ) {<a name="line.45"></a>
<span class="sourceLineNo">046</span>            comp = ((String)v1).compareTo((String)v2 );<a name="line.46"></a>
<span class="sourceLineNo">047</span>        } else if ( v1 instanceof Integer ) {<a name="line.47"></a>
<span class="sourceLineNo">048</span>            comp = ((Integer)v1).compareTo((Integer)v2 );<a name="line.48"></a>
<span class="sourceLineNo">049</span>        } else if ( v1 instanceof BigDecimal ) {<a name="line.49"></a>
<span class="sourceLineNo">050</span>            comp = ((BigDecimal)v1).compareTo((BigDecimal)v2 );<a name="line.50"></a>
<span class="sourceLineNo">051</span>        } else {<a name="line.51"></a>
<span class="sourceLineNo">052</span>            System.out.println("Unknown type: " + v1.getClass().getName());<a name="line.52"></a>
<span class="sourceLineNo">053</span>        }<a name="line.53"></a>
<span class="sourceLineNo">054</span>        if  (comp !=  0) {<a name="line.54"></a>
<span class="sourceLineNo">055</span>            return comp;<a name="line.55"></a>
<span class="sourceLineNo">056</span>        }<a name="line.56"></a>
<span class="sourceLineNo">057</span>    }<a name="line.57"></a>
<span class="sourceLineNo">058</span><a name="line.58"></a>
<span class="sourceLineNo">059</span>    // Then compare the order of lists given<a name="line.59"></a>
<span class="sourceLineNo">060</span>    return w1.getIndex() - w2.getIndex();<a name="line.60"></a>
<span class="sourceLineNo">061</span>  }<a name="line.61"></a>
<span class="sourceLineNo">062</span>}<a name="line.62"></a>




























































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